Kale is a variant of cabbage, with a spoon-shaped midrib and wrinkled surface.The stem can reach 35-100 centimeters in height.No head ball grows at the top end of the stem, but buds can grow between the leaves to form small leaf balls, with heads ranging from 1 to 4 centimeters in diameter, which may be yellow-green or purplish-red.It is widely cultivated in countries such as Britain, France, and Belgium, with only a small amount grown in China for use in Western cuisine.The quality of kai-lan should be: well-shaped, uniformly sized, fresh and clean without any diseases or pests.
